NOAA: Summer Temperature Below Average for U.S.

September 10, 2009

The average June-August 2009 summer temperature for the contiguous United States was below average – the 34th coolest on record, according to a preliminary analysis by NOAA’s National Climatic Data Center in Asheville, N.C. August was also below the long-term average. The analysis is based on records dating back to 1895. 

U.S. Temperature Highlights – Summer

June-August 2009 statewide temperature ranks.

High resolution (Credit: NOAA)

U.S. Temperature Highlights – August

August 2009 statewide temperature ranks.

High resolution (Credit: NOAA)

U.S. Precipitation Highlights – Summer

June-August 2009 statewide Precipitation ranks.

High resolution (Credit: NOAA)

U.S. Precipitation Highlights – August

Other Highlights

NCDC’s preliminary reports, which assess the current state of the climate, are released soon after the end of each month. These analyses are based on preliminary data, which are subject to revision. Additional quality control is applied to the data when late reports are received several weeks after the end of the month and as increased scientific methods improve NCDC’s processing algorithms.

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